Subject: Re: current port-vax status
To: Dave McGuire <mcguire@neurotica.com>
From: Johnny Billquist <bqt@update.uu.se>
List: port-vax
Date: 03/08/2006 09:44:19
The only difference from a VXT2000 that I can discern here is that these
are based on Unix, while the VXT2000 (and 1200) were based on some DEC
inhouse OS. Otherwise it sounds exactly the same.
I can't remember if any of the VXT terminals were net-booted. They might
have been. Others had the system in flash (I think it is).
The VXT terminals had a VAX cpu. They might have been running VAXELN,
but I'm not sure. Anyway, they booted their OS, and you got your
X-terminal, from which you could start XDM connections to other
machines. It also had a terminal program, within which you could start
telnet sessions, LAT sessions, CTERM sessions, or speak on the actual
serial port.
Johnny
Dave McGuire wrote:
>
> Sort of, yes, but a slightly different approach. Xkernel was a
> package that floated around for awhile maybe 11-13 years ago. It was a
> stripped-down kernel config for SunOS 4 (for Sun3 and SPARC), a shell
> script that replaced /sbin/init, and a few other little things. You
> configured the machine to netboot, and it basically turned a Sun
> workstation into an X terminal running either a chooser application to
> select a host to connect to, or explicitly "tie" it to one host. It
> worked very, very well.
>
> At a large ISP I was involved with throughout the 1990s, we had dozens
> of them sprinkled about. At first they were back-ended by a Sun4-200
> which was the "staff server" (its hostname was "ss1", for "staff server
> #1"), but in the later years we migrated the back-end services to a few
> SPARCstation-20 machines...with serial consoles in the computer room, as
> servers should be.
>
> The machines running Xkernel were Sun3/50, Sun3/60, Sun3/140, and
> Sun4/110 machines. Once, just because I could, I built one with a
> Sun3/200 CPU board, two 8MB RAM boards, and a framebuffer in a six-slot
> 4/150 chassis. :-)
>
> -Dave
>
> On Mar 7, 2006, at 11:19 PM, Johnny Billquist wrote:
>
>> Aren't we just talking about an X-terminal here? DEC made those almost
>> 20 years ago. Everything in firmware even.
>> That's how you play X against a big VAX. :-)
>>
>> Johnny
>>
>> Dave McGuire wrote:
>>
>>> On Mar 7, 2006, at 4:45 PM, Rhialto wrote:
>>>
>>>> Stuff can be made fairly minimal - I have a stripped down
>>>> NetBSD/sun3 to
>>>> run as an X server and nothing else (netbooting). There is not even an
>>>> init binary: it has been replaced by a shell script.
>>>
>>> Mmm, sounds like Xkernel. :-) I ran an office full of those years
>>> ago. Very cool indeed.
>>> -Dave
>>> --
>>> Dave McGuire
>>> Cape Coral, FL
>>
>>
>> --
>> Johnny Billquist || "I'm on a bus
>> || on a psychedelic trip
>> email: bqt@update.uu.se || Reading murder books
>> pdp is alive! || tryin' to stay hip" - B. Idol
>>
>>
>
> --
> Dave McGuire
> Cape Coral, FL
>
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt@update.uu.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol